CN111168874A - Method for efficiently recycling plastic-wood sawdust powder - Google Patents
Method for efficiently recycling plastic-wood sawdust powder Download PDFInfo
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- CN111168874A CN111168874A CN201911406419.6A CN201911406419A CN111168874A CN 111168874 A CN111168874 A CN 111168874A CN 201911406419 A CN201911406419 A CN 201911406419A CN 111168874 A CN111168874 A CN 111168874A
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- plastic
- wood
- sawdust powder
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29B—PREPARATION OR PRETREATMENT OF THE MATERIAL TO BE SHAPED; MAKING GRANULES OR PREFORMS; RECOVERY OF PLASTICS OR OTHER CONSTITUENTS OF WASTE MATERIAL CONTAINING PLASTICS
- B29B9/00—Making granules
- B29B9/02—Making granules by dividing preformed material
- B29B9/06—Making granules by dividing preformed material in the form of filamentary material, e.g. combined with extrusion
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B03—SEPARATION OF SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS; MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
- B03C—MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
- B03C1/00—Magnetic separation
- B03C1/02—Magnetic separation acting directly on the substance being separated
- B03C1/30—Combinations with other devices, not otherwise provided for
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29B—PREPARATION OR PRETREATMENT OF THE MATERIAL TO BE SHAPED; MAKING GRANULES OR PREFORMS; RECOVERY OF PLASTICS OR OTHER CONSTITUENTS OF WASTE MATERIAL CONTAINING PLASTICS
- B29B17/00—Recovery of plastics or other constituents of waste material containing plastics
- B29B17/02—Separating plastics from other materials
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
- B29C48/25—Component parts, details or accessories; Auxiliary operations
- B29C48/36—Means for plasticising or homogenising the moulding material or forcing it through the nozzle or die
- B29C48/50—Details of extruders
- B29C48/505—Screws
- B29C48/52—Screws with an outer diameter varying along the longitudinal axis, e.g. for obtaining different thread clearance
- B29C48/525—Conical screws
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
- B29C48/25—Component parts, details or accessories; Auxiliary operations
- B29C48/36—Means for plasticising or homogenising the moulding material or forcing it through the nozzle or die
- B29C48/50—Details of extruders
- B29C48/505—Screws
- B29C48/56—Screws having grooves or cavities other than the thread or the channel
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
- B29C48/25—Component parts, details or accessories; Auxiliary operations
- B29C48/36—Means for plasticising or homogenising the moulding material or forcing it through the nozzle or die
- B29C48/50—Details of extruders
- B29C48/505—Screws
- B29C48/59—Screws characterised by details of the thread, i.e. the shape of a single thread of the material-feeding screw
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29B—PREPARATION OR PRETREATMENT OF THE MATERIAL TO BE SHAPED; MAKING GRANULES OR PREFORMS; RECOVERY OF PLASTICS OR OTHER CONSTITUENTS OF WASTE MATERIAL CONTAINING PLASTICS
- B29B17/00—Recovery of plastics or other constituents of waste material containing plastics
- B29B17/02—Separating plastics from other materials
- B29B2017/0213—Specific separating techniques
- B29B2017/0217—Mechanical separating techniques; devices therefor
- B29B2017/0224—Screens, sieves
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29B—PREPARATION OR PRETREATMENT OF THE MATERIAL TO BE SHAPED; MAKING GRANULES OR PREFORMS; RECOVERY OF PLASTICS OR OTHER CONSTITUENTS OF WASTE MATERIAL CONTAINING PLASTICS
- B29B17/00—Recovery of plastics or other constituents of waste material containing plastics
- B29B17/02—Separating plastics from other materials
- B29B2017/0213—Specific separating techniques
- B29B2017/0268—Separation of metals
- B29B2017/0272—Magnetic separation
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C2948/00—Indexing scheme relating to extrusion moulding
- B29C2948/92—Measuring, controlling or regulating
- B29C2948/92504—Controlled parameter
- B29C2948/92704—Temperature
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W30/00—Technologies for solid waste management
- Y02W30/50—Reuse, recycling or recovery technologies
- Y02W30/62—Plastics recycling; Rubber recycling
Abstract
The embodiment of the invention discloses a method for efficiently recycling plastic-wood sawdust powder, which comprises the following steps: s1, removing impurities from the plastic wood sawdust powder, and granulating the sawdust powder into granules by an extruder; s2, extruding and granulating the sawdust powder granulated material by a plastic-wood granulating machine according to the color ratio to obtain plastic-wood granulated material; s3, extruding and molding the plastic-wood reworked material into plastic-wood through a plastic-wood molding machine; s4, cutting and grinding the plastic wood, drawing the wire and cutting the package, wherein the plastic wood sawdust powder generated in the process is processed through the step S1. The method for efficiently recycling the plastic-wood sawdust powder can be used for producing plastic-wood sectional materials by removing impurities from the plastic-wood sawdust powder, then granulating the plastic-wood sawdust powder, and then granulating the plastic-wood sawdust powder according to the required color proportion, so that the plastic-wood sawdust powder is effectively recycled, resources are saved, the raw material cost of an enterprise is reduced, solid wastes generated in the production process of the enterprise are reduced, and the environment is protected.
Description
Technical Field
The invention relates to the technical field of plastic-wood processing, in particular to a method for efficiently recycling plastic-wood sawdust powder.
Background
In the plastic-wood production and processing process, the produced plastic-wood section cannot completely meet the requirement, the cutting, grinding, wire drawing and package cutting are always inevitable to obtain a final product, and a certain amount of plastic-wood sawdust powder is generated in the process. The existence of the plastic-wood sawdust powder not only occupies a large amount of factory area, but also causes resource waste, and the dust also pollutes the air of a workshop to damage the health of production workers. Therefore, from the viewpoint of saving resources and protecting the environment, it is better to recycle the wood-plastic sawdust powder.
Disclosure of Invention
The invention aims to overcome the technical defects, provides a method for efficiently recycling the plastic-wood sawdust powder, and solves the technical problem that the plastic-wood sawdust powder is difficult to recycle in the prior art.
In order to achieve the technical purpose, the embodiment of the invention provides a method for efficiently recycling plastic-wood sawdust powder, which comprises the following steps: s1, removing impurities from the plastic wood sawdust powder, and granulating the sawdust powder into granules by an extruder; s2, extruding and granulating the sawdust powder granulated material by a plastic-wood granulating machine according to the color ratio to obtain plastic-wood granulated material; s3, extruding and molding the plastic-wood reworked material into plastic-wood through a plastic-wood molding machine; s4, cutting and grinding the plastic wood, drawing the wire and cutting the package, wherein the plastic wood sawdust powder generated in the process is processed through the step S1.
Compared with the prior art, the invention has the following beneficial effects: the method for efficiently recycling the plastic-wood sawdust powder can be used for producing plastic-wood sectional materials by removing impurities from the plastic-wood sawdust powder, then granulating the plastic-wood sawdust powder, and then granulating the plastic-wood sawdust powder according to the required color proportion, so that the plastic-wood sawdust powder is effectively recycled, resources are saved, the raw material cost of an enterprise is reduced, solid wastes generated in the production process of the enterprise are reduced, and the environment is protected.
Drawings
Fig. 1 is a flow chart of a method for efficiently recycling plastic-wood sawdust powder provided by the invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
Referring to fig. 1, fig. 1 is a flow chart of a method for recycling plastic wood sawdust powder efficiently according to the present invention.
The method for efficiently recycling the plastic-wood sawdust powder comprises the following steps:
and step S1, removing impurities from the plastic-wood sawdust powder, and granulating the sawdust powder into granules by an extruder. In the step, the impurity removal method is generally to filter through a screen and absorb iron impurities by using a magnet. For happy raising the efficiency, can filter through the shale shaker to set up one or more magnetite in the shale shaker, adsorb the iron impurity in the wood-plastic sawdust powder in filtering process.
In this step, an 80 twin-screw extruder is preferably used, and a feed rate of 25 to 28r/min and a stock cut rate of 30 to 40r/min are set. The machine barrel of the 80-twin-screw extruder comprises a first machine barrel first zone, a first machine barrel second zone, a first machine barrel third zone, a first machine barrel fourth zone, a first machine barrel fifth zone, a first confluence core temperature zone and a die head temperature zone, wherein the temperature of the first machine barrel first zone is 185-190 ℃, the temperature of the machine barrel second zone is 185-190 ℃, the temperature of the machine barrel third zone is 175-180 ℃, the temperature of the machine barrel fourth zone is 175-180 ℃, the temperature of the machine barrel fifth zone is 160-170 ℃, the temperature of the confluence core is 175-180 ℃ and the temperature of the die head is 185-190 ℃ so as to obtain good granulation effect.
Meanwhile, the 80-twin screw extruder also comprises a parallel feeding screw and a vertical feeding screw, wherein the parallel feeding screw is a screw with the length of 60-65cm, the pitch of screw grooves of the parallel feeding screw is 10-12cm, the thickness of screw edges of the parallel feeding screw is 0.5-0.8cm, and the inclination angle of the screw grooves is 5-10 degrees. The vertical feeding screw is 50-55cm long, the pitch of the screw grooves is 8-10cm, the thickness of the screw edges is 0.6-1.0cm, and the inclination angle of the screw grooves is 8-12 degrees.
And step S2, homogenizing the sawdust powder granulation material in a homogenizing tank for 6-8 hours, and extruding and granulating by a plastic-wood granulation machine according to the color ratio to obtain the plastic-wood granulation material. Since the wood-plastic sawdust powder used to produce sawdust powder granules in step S1 is from different batches, the sawdust powder granules also have different colors, and therefore need to be homogenized in a homogenizing tank and then blended according to the desired color and formula.
For example, the plastic wood product for preparing coffee comprises the following materials in proportion: 180-190 parts of sawdust powder granules, 5-10 parts of HDPE (High Density Polyethylene) plastic particles, 3-5 parts of a compatilizer, 2.8-3 parts of iron oxide red, 0.6 part of iron oxide yellow and 3 parts of titanium dioxide. The material proportion required for preparing the plastic wood products with different colors is also different, and the plastic wood products can be adjusted according to actual conditions during specific production.
After the processes of batching and mixing are finished according to a certain proportion, the plastic wood granules are obtained by extrusion granulation through a plastic wood granulation machine. In the step, a conical double-screw extruder is adopted as a plastic wood forming machine, and comprises a first grinding tool area, a second mould area, a third mould area and a fourth mould area, wherein the temperatures of the first mould area, the second mould area, the third mould area and the fourth mould area are controlled to be 145-155 ℃,
the plastic wood forming machine also comprises a first cylinder area, a second cylinder area, a third cylinder area, a fourth cylinder area and a second confluence core temperature area, wherein the temperature of the first cylinder area is controlled to be 185-190 ℃, the temperature of the second cylinder area is controlled to be 180-185 ℃, the temperature of the third cylinder area is controlled to be 170-175 ℃, the temperature of the fourth cylinder area is controlled to be 150-160 ℃, and the temperature of the confluence core is controlled to be 145-150 ℃.
And step S3, extruding the plastic-wood reworked material into a plastic-wood section through a plastic-wood forming machine. The specific production process of this step is the same as the existing plastic wood production process, and therefore, is not described herein.
And S4, cutting, grinding, drawing, cutting and packaging the produced plastic-wood section to obtain a final product, collecting the plastic-wood sawdust powder generated in the process, and processing through the S1 to realize circulation.
In the method, steps S3 and S4 are both existing mature production processes, and the method for recovering the plastic-wood sawdust powder for reuse in the production of plastic-wood profiles is mainly realized by processing the plastic-wood sawdust powder into plastic-wood aggregate which can be used for producing plastic-wood profiles through steps S1 and S2.
The embodiment of the invention has the following beneficial effects: the method for efficiently recycling the plastic-wood sawdust powder can be used for producing plastic-wood sectional materials by removing impurities from the plastic-wood sawdust powder, then granulating the plastic-wood sawdust powder, and then granulating the plastic-wood sawdust powder according to the required color proportion, so that the plastic-wood sawdust powder is effectively recycled, resources are saved, the raw material cost of an enterprise is reduced, solid wastes generated in the production process of the enterprise are reduced, and the environment is protected.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents, improvements and the like that fall within the spirit and principle of the present invention are intended to be included therein.
Claims (8)
1. A method for efficiently recycling plastic-wood sawdust powder is characterized by comprising the following steps:
s1, removing impurities from the plastic wood sawdust powder, and granulating the sawdust powder into granules by an extruder;
s2, extruding and granulating the sawdust powder granulated material by a plastic-wood granulating machine according to the color ratio to obtain plastic-wood granulated material;
s3, extruding the plastic-wood reworked material to form a plastic-wood section through a plastic-wood forming machine;
s4, cutting, grinding, wire drawing and packaging the plastic wood section to obtain a final product, wherein the plastic wood sawdust powder generated in the process is processed through the step S1.
2. The method for recycling plastic-wood sawdust powder of claim 1, wherein in step S1, the extruder is an 80-twin screw extruder, the feeding speed is 25-28r/min and the cutting speed is 30-40 r/min.
3. The method for efficiently recycling plastic-wood sawdust powder as claimed in claim 2, wherein the barrel of the extruder comprises a first barrel first zone, a first barrel second zone, a first barrel third zone, a first barrel fourth zone, a first barrel fifth zone, a first interflow core temperature zone and a die head temperature zone, the temperature of the first barrel first zone is 185-190 ℃, the temperature of the barrel second zone is 185-190 ℃, the temperature of the barrel third zone is 175-180 ℃, the temperature of the barrel fourth zone is 175-180 ℃, the temperature of the barrel fifth zone is 160-170 ℃, the temperature of the interflow core is 175-180 ℃ and the temperature of the die head is 185-190 ℃.
4. The method for efficiently recycling plastic-wood sawdust powder as claimed in claim 3, wherein the extruder further comprises a parallel feed screw and a vertical feed screw, the length of the parallel feed screw is 60-65cm, the pitch of the screw grooves is 10-12cm, the thickness of the screw ridges is 0.5-0.8cm, and the inclination angle of the screw grooves is 5-10 °; the length of the vertical feeding screw is 50-55cm, the distance between screw grooves is 8-10cm, the thickness of screw edges is 0.6-1.0cm, and the inclination angle of the screw grooves is 8-12 degrees.
5. The method for efficiently recycling the plastic-wood sawdust powder according to claim 1, wherein the impurities are removed in the step S1 by filtering through a screen and absorbing iron impurities by using a magnet.
6. The method for recycling sawdust powder from plastic wood according to claim 1, wherein in step S2, the sawdust powder granulation material needs to be homogenized in a homogenizing tank for 6-8 hours before entering the plastic wood granulation machine.
7. The method for recycling the sawdust powder of plastic wood efficiently as claimed in claim 1, wherein in step S2, said plastic wood forming machine employs a conical twin-screw extruder, which includes a first die area, a second die area, a third die area and a fourth die area, and the temperatures of said first die area, said second die area, said third die area and said fourth die area are all 145-155 ℃.
8. The method for efficiently recycling plastic-wood sawdust powder according to claim 7, wherein the plastic-wood forming machine further comprises a first barrel zone, a second barrel zone and a second confluent core temperature zone, wherein the temperature of the first barrel zone is 185-190 ℃, the temperature of the second barrel zone is 180-185 ℃, the temperature of the third barrel zone is 170-175 ℃, the temperature of the fourth barrel zone is 150-160 ℃, and the confluent core temperature is 145-150 ℃.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911406419.6A CN111168874A (en) | 2019-12-31 | 2019-12-31 | Method for efficiently recycling plastic-wood sawdust powder |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911406419.6A CN111168874A (en) | 2019-12-31 | 2019-12-31 | Method for efficiently recycling plastic-wood sawdust powder |
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| CN111168874A true CN111168874A (en) | 2020-05-19 |
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| CN201911406419.6A Pending CN111168874A (en) | 2019-12-31 | 2019-12-31 | Method for efficiently recycling plastic-wood sawdust powder |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114311391A (en) * | 2021-11-10 | 2022-04-12 | 江苏奥泰克新材料有限公司 | Production process of novel plastic-wood fiber material |
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| CN101760033A (en) * | 2008-12-26 | 2010-06-30 | 惠东美新塑木型材制品有限公司 | Novel plastic wood and production process thereof |
| CN103435882A (en) * | 2013-07-05 | 2013-12-11 | 中盈长江国际新能源投资有限公司 | Thermoplastic wood-plastic composite material and production method thereof |
| CN108102196A (en) * | 2017-12-29 | 2018-06-01 | 南京聚锋新材料有限公司 | A kind of preparation method of the plastic-wood section with high flame resistance |
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2019
- 2019-12-31 CN CN201911406419.6A patent/CN111168874A/en active Pending
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| CN101081540A (en) * | 2006-06-02 | 2007-12-05 | 上海奔奔门业有限公司 | Wide wood-plastic foaming doors, plate material and its making method |
| CN101760033A (en) * | 2008-12-26 | 2010-06-30 | 惠东美新塑木型材制品有限公司 | Novel plastic wood and production process thereof |
| CN101747641A (en) * | 2010-02-05 | 2010-06-23 | 上海国成塑料有限公司 | Polyvinyl wood-plastic composite and method for preparing same |
| CN103435882A (en) * | 2013-07-05 | 2013-12-11 | 中盈长江国际新能源投资有限公司 | Thermoplastic wood-plastic composite material and production method thereof |
| CN108102196A (en) * | 2017-12-29 | 2018-06-01 | 南京聚锋新材料有限公司 | A kind of preparation method of the plastic-wood section with high flame resistance |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN114311391A (en) * | 2021-11-10 | 2022-04-12 | 江苏奥泰克新材料有限公司 | Production process of novel plastic-wood fiber material |
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Application publication date: 20200519 |